New drug targets Life-Threatening immune storm in rheumatic patients

NCT ID NCT07208058

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 3 trial tests a drug called plonmarlimab in 30 adults with a severe immune overreaction (macrophage activation syndrome) linked to rheumatic diseases that hasn't responded to prior treatment. Participants receive weekly IV infusions for 8 weeks. The main goal is to see if the drug can control the overactive immune response.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Plonmarlimab (a drug given by IV injection)

What this could lead to

If it works, this could offer a new treatment option for people with severe, hard-to-treat macrophage activation syndrome, a life-threatening complication of rheumatic diseases.

What could go wrong

This is a small, early-phase trial with only 30 participants, so results may not apply to everyone. The drug may not work or could cause side effects.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

macrophage activation syndrome Recurrence secondary hemophagocytic lymphohistiocytosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Beijing Friendship Hospital, Capital Medical University

    RECRUITING

    Beijing, Beijing Municipality, China

    Contact Email: •••••@•••••

  • Children's Hospital of Fudan University

    RECRUITING

    Shanghai, Shanghai Municipality, China

    Contact

  • Henan Children's Hospital Zhengzhou Children's Hospital

    RECRUITING

    Zhengzhou, Henan, China

    Contact

  • Huashan Hospital, Fudan University

    RECRUITING

    Shanghai, Shanghai Municipality, China

    Contact

  • Peking Union Medical College Hospital, Chinese Academy of Medical Sciences

    RECRUITING

    Beijing, Beijing Municipality, China

    Contact

  • Peking University People's Hospital

    NOT_YET_RECRUITING

    Beijing, Beijing Municipality, China

    Contact

  • Renji Hospital, Shanghai Jiao Tong University School of Medicine

    RECRUITING

    Shanghai, Shanghai Municipality, China

    Contact

  • Sun Yat-sen Memorial Hospital, Sun Yat-sen University

    RECRUITING

    Guangzhou, Guangdong, China

    Contact

  • The First Affiliated Hospital of China Medical University

    WITHDRAWN

    Shenyang, Liaoning, China

  • The First Affiliated Hospital of Nanchang University

    RECRUITING

    Nanchang, Jiangxi, China

    Contact

  • The First Affiliated Hospital of Zhengzhou University

    RECRUITING

    Zhengzhou, Henan, China

    Contact

  • The First Affiliated Hospital, Zhejiang University School of Medicine

    RECRUITING

    Hangzhou, Zhejiang, China

    Contact

  • The Second Hospital of Hebei Medical University

    RECRUITING

    Shijiazhuang, Hebei, China

    Contact

  • Tianjin Medical University General Hospital

    WITHDRAWN

    Tianjin, Tianjin Municipality, China

  • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

    RECRUITING

    Wuhan, Hubei, China

    Contact